Organic Fertilization Enhances Microbial-Mediated Dissolved Organic Matter Composition and Transformation in Paddy Soil
文献类型：期刊论文
| 作者 | Chen, Long2; Fang, Huajun1,2,3; Cheng, Shulan2; Wang, Hui2,3; Guo, Yifan2,3; Shi, Fangying2,3; Liu, Bingqian2; Pu, Haiguang2,3 |
| 刊名 | AGRICULTURE-BASEL
 |
| 出版日期 | 2025-11-22 |
| 卷号 | 15期号:23页码:2412 |
| 关键词 | DOM FT-ICR-MS organic fertilization paddy soil |
| DOI | 10.3390/agriculture15232412 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Dissolved organic matter (DOM) is a crucial carbon source for soil microorganisms and plays a vital role in nutrient cycling and carbon (C) sequestration in soils. However, the extent to which soil microbes mediate DOM transformation at the molecular level, and whether this is regulated by different organic fertilization, remains unclear. Here, we designed a field experiment to investigate the transformations of DOM under three types of organic fertilization (straw, biochar, and manure) using Fourier transform ion cyclotron resonance mass spectrometry and metagenomic analysis. Compared to the control, manure fertilization increased the molecular chemodiversity of DOM by 33.2%, with recalcitrant compounds (e.g., highly unsaturated phenolic compounds and lignins) increasing by 47.2%. In contrast, labile compounds (e.g., aliphatics) decreased by 73.5%. Compared to straw treatment, manure application significantly increased the average conversion rate of dissolved organic matter (DOM). This process was accompanied by a significant increase in the Shannon index of the soil microbial community (p < 0.05) and upregulation of ABC transporter-encoding genes (e.g., livK, livM). DOM composition directly governed transformation potential (p < 0.01), whereas functional genes enhanced transformation indirectly by modulating DOM composition. This study elucidates microbial-mediated DOM transformation mechanisms under varying organic fertilization practices, providing a scientific basis for optimizing soil organic matter management in paddy ecosystems. |
| URL标识 | 查看原文 |
| WOS关键词 | EXTRACELLULAR ENZYMES ; CARBON STORAGE ; NITROGEN ; COMMUNITIES |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:001635047100001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219398]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 通讯作者 | Cheng, Shulan |
| 作者单位 | 1.Zhongke Jian Inst Ecoenvironm Sci, Jian 343000, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100101, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chen, Long,Fang, Huajun,Cheng, Shulan,et al. Organic Fertilization Enhances Microbial-Mediated Dissolved Organic Matter Composition and Transformation in Paddy Soil[J]. AGRICULTURE-BASEL,2025,15(23):2412. |
| APA | Chen, Long.,Fang, Huajun.,Cheng, Shulan.,Wang, Hui.,Guo, Yifan.,...&Pu, Haiguang.(2025).Organic Fertilization Enhances Microbial-Mediated Dissolved Organic Matter Composition and Transformation in Paddy Soil.AGRICULTURE-BASEL,15(23),2412. |
| MLA | Chen, Long,et al."Organic Fertilization Enhances Microbial-Mediated Dissolved Organic Matter Composition and Transformation in Paddy Soil".AGRICULTURE-BASEL 15.23(2025):2412. |
入库方式： OAI收割
来源：地理科学与资源研究所
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